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Finding the Fourth Proportional to 11,859.84, 17,770.28 and 4,064.40

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Solution

The fourth proportional to 11,859.84, 17,770.28 and 4,064.40 is: 6,089.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.84 : 17,770.28 = 4,064.40 : x
  2. Step 2: Convert to fraction form
    11,859.84/17,770.28 = 4,064.40/x
  3. Step 3: Cross multiply
    11,859.84x = 17,770.28 × 4,064.40
  4. Step 4: Simplify right side
    11,859.84x = 72,225,526.03
  5. Step 5: Solve for x
    x = 72,225,526.03/11,859.84
  6. Step 6: Final answer
    x = 6,089.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.